New Boliden is a Swedish mining and smelting company focusing on production of copper, zinc, lead, gold and silver. Following a series of acquisitions during the 1980s and 1990s the company acquired mining and smelting assets of the Finnish mining and smelting company Outokumpu in 2003. Outokumpu acquired the subsidiary Boliden Contech and Boliden's copper and zinc divisions. As a consequence of the deal, Outokumpu ended up controlling 49 percent of the Boliden shares.

The company has approximately 4,500 employees. The name comes from the Boliden mine, some 30 km northwest of the Swedish town of Skellefteå, where gold was found in 1924. It was once Europe's largest and richest gold mine, but since 1967 the mine has been defunct.